openstack: fix teuthology config test for clone
openstack: fix teuthology config test for clone

The test failed because it looked for upload= instead of clone=

Signed-off-by: Loic Dachary <5971e5274f1f0ba5329cf4a93393d8fbe5224c44@dachary.org>

dmick/teuthology,ktdreyer/teuthology,ceph/teuthology,dreamhost/teuthology,ktdreyer/teuthology,robbat2/teuthology,SUSE/teuthology,dreamhost/teuthology,caibo2014/teuthology,dmick/teuthology,ceph/teuthology,dmick/teuthology,caibo2014/teuthology,SUSE/teuthology,SUSE/teuthology,robbat2/teuthology